Mozilla Foundation Security Advisory 2014-22

WebGL content injection from one domain to rendering in another

Announced

March 18, 2014

Reporter

Jeff Gilbert

Impact

Moderate

Products

Firefox, SeaMonkey

Fixed in

Firefox 28

SeaMonkey 2.25

Description

Mozilla developer Jeff Gilbert discovered a mechanism where
a malicious site with WebGL content could inject content from its context to
that of another site's WebGL context, causing the second site to replace
textures and similar content. This cannot be used to steal data but could be
used to render arbitrary content in these limited circumstances.

In general this flaw cannot be exploited through email in the
Seamonkey product because WebGL is not enabled, but is potentially a risk in
browser or browser-like contexts.